Views, ContinuedRevolutions(Continued)When revolving objects perpendicular to the top plane of projection, heightdimensions remain unchanged. Size and shape are unchanged. Transfer therevolved view from the orthographic view by means of dividers or a scale.Figure 3-48 shows a 45-degree revolution perpendicular to the top plane ofprojection.Figure 3-48.A revolution perpendicular to the top plane of projection.Continued on next page3-54